Protection circuit

A technology for protecting circuits and power supplies, applied to emergency protection circuit devices, circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc., can solve problems such as power supply or load circuit damage, and achieve simple and reliable circuits. Low cost and improved safety performance

Inactive Publication Date: 2012-12-05
HANS LASER TECH IND GRP CO LTD
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In electronic circuits, the power supply of electronic circuits is usually damaged due to reverse connection of th

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Protection circuit
  • Protection circuit
  • Protection circuit

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0012] The specific embodiments of the present invention will be described below mainly in conjunction with the drawings.

[0013] Such as figure 1 As shown, a protection circuit 200 includes a fuse 201, a diode 202, and a capacitor 203. The fuse 201 is connected in series in a protection circuit, wherein the input end of the protection circuit is connected to a DC power supply 100, and the output end of the protection circuit A load 300 is connected; the diode 202 is connected in parallel with the load 300, its cathode is connected to the anode of the DC power supply 100, and the capacitor 203 is connected between the protection circuit and the ground.

[0014] The protection circuit 200 includes two input terminals A and B and two output terminals C and D. The two input terminals A and B are respectively connected to the positive and negative electrodes of the DC circuit 100. The two output terminals C and D are connected to the load. The diode 202 The cathode of is connected to ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a protection circuit. An input end of the protection circuit is connected with a DC (Direct Current) power supply, an output end of the protection circuit is connected with a load, the protection circuit comprises a fuse, a diode and a capacitor, wherein the fuse is connected in the protection circuit in series, the diode is connected with the load in parallel, a cathode of the diode is connected with an anode of the DC power supply, and the capacitor is connected between the protection circuit and the ground. The protection circuit provided by the invention has the beneficial effect that the protection for various abnormal conditions such as over current, opposite phase and static of the power supply and the load can be realized. The protection circuit provided by the invention has the advantages that the circuit is simple and reliable, the cost is low, and the safety performance of the power supply and the load can be greatly increased.

Description

【Technical field】 [0001] The invention relates to the field of electronic circuit power supply. 【Background technique】 [0002] In electronic circuits, the power supply of the electronic circuit is usually damaged due to reverse connection of the power supply, or overcurrent or static electricity caused by the short circuit of the electronic circuit itself (load). 【Content of invention】 [0003] In order to avoid damage to the power supply or load circuit, the present invention provides a protection circuit to solve the situation that the power supply of the electronic circuit is damaged due to reverse connection of the power supply, or overcurrent or static electricity caused by the short circuit of the electronic circuit itself (load). [0004] The embodiment of the present invention is achieved in this way, the input end of the protection circuit is connected to a DC power supply, and the output end of the protection circuit is connected to a load, the protection circui...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02H11/00H02H9/04H02H3/08
Inventor 黄剑威吕启涛高云峰
Owner HANS LASER TECH IND GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap